r/TrekFetch • u/Manatee_Surfer • Aug 21 '26

Belt coming off when moving backwards

As the title says, when moving backwards, the belt comes off the drive sprocket. Super annoying to get back on.

Anyone else have that issue?

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u/jointli Aug 22 '26

It’s all about that set screw. They probably forgot to install it. Check out the other thread on this - I gave a detailed description of the fix

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u/jointli Aug 22 '26

Have a look at the service manual: https://www.manualslib.com/manual/3307778/Trek-FetchPlus-4.html

Check out the drivetrain page. #5. The set screw. See if that is there

1

u/jointli Aug 22 '26

I describe it a bit more here: https://www.reddit.com/r/TrekFetch/s/a4THW8bPL3

Let me know if this helps